Oil-well grapple



mmh u 1924.

l VJ. BAJUS OIL WELL GRAPPLE Filed Dec. 28. 1922 Flc-:1.

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anatra @erica JQN BMUS, F CANVILLE, HIO.

OILJWML GlPlLE.

application @led llbecember 2t, 1922. Serial No. $09,489.

To all whom 'it may concem:

Beit known that I, JOHN BAJUS, a citizen of the United States of America, residing at Canaanville, in the county of Athens and State of Ohio, have invented certain new and useful Improvements in Oil-Well Grapples, of which the following is a specification.

This invention relates to certain new and useful improvements in oil well grapples and is particularly, designed for extracting broken pipes from oil or other wells.

'lhe primary object of the invention resides in the provision of an oil well grapple wherein a tubular casing has an outwardly flared lower end for readily positioning the same vupon a broken pipe section with means carried by the casing automatically moved into engagement with a broken pipe for grippling the same to remove the plpe from a wel 'With the above and other objects in view as the nature of the invention is better understood, the same consists of the novel form, combination and arrangement vor parts' hereinafter more fully described, shown in the accompanying drawing and dii claimed.

lin the drawing, wherein like reference characters designate corresponding parts throughout the several views,

'Figure l is a side elevational view olf an oil well grapple constructed in accordance with the present invention, a well casing and pipe being illustrated by dotted lines,

Figure 2 is a vertical sectional -view ci the grapple with a broken pipe section gripped therein and illustrated by dotted mes,

Figure 3 is a cross-sectional view talren on line lill-lill ci Fig. 2 showing the pipe gripping arms extending into lthe grapple casing,

Figure @l is a side elevational view, partly broken away and shown in vsection of the modified dorm o grapple wherein the ipe gripping arms are ivotall mounted in pivoted members carried by t e'grapple casand ligure is a cross-sectional viewY taken on line SlT-'5V of Fig. di

Referring more in detail to the accomvpanying drawing, there is illustrated a gra ple especially` designed for extracting bro en pipes from oil' or other wells, the

grapple including, as illustrated in Figs. l. to 3, a tubular casing l having an outwardly flared lower end 2 with a shackle 3 removy ably secured to the upper end thereof to which a hoisting cable 4 is attached. A As shown in Fig. 1, the grapple is illustrated as operatively positioned in a well havin a casing pipe 5 and a pipe section 6 worklng therein As shown more clearly in Figs. 2 and 3, the tubular casing 1 intermediate the ends thereof is provided with circumferentially arranged and equi-distantly spaced outwardly directed sections, each embodying side walls 7 and an outer wall 8, the lower end 9 of the outer wall being inclined downwardly toward the wall of the casing l. while the upper ends ofthe side walls 7 are cutaway as at l0. A gripping arm 11 is pivotally mounted as at l2 in each section adjacent the lower end thereof and is engaged at its upper side by the leal spring l?, secured as at ld to the outer wall 8, the openings lO facilitating access to the arms ll and spring l1? for pprposes of repair or otherwise. 'llhe wor 'ng ends of the arms ll are serrated as at 15 for more positively gripping a pipe section 6 as illustrated in .d ig. 2. r

ln the operation of the device, the arms ll are normally positioned at their limit oi."l downward movement in engagement with the inclined wall 9 ol each section and the grapple casing l is lowered into a well as shown in Fig. l by the cable il. The outwardly dared lower end 2 of the rapple casing Jfacilitates postioning thereo upon the pipe section 6, the upper end ol which engages the arms ll to move the same upon the pivot pins l2 into the position shown in Fig. 2,- upward movement of the grapple V'casing l causing the serrated workin edges l5 ot the arms ll to positively grip t e p1pe section 6 and he retained in engagement therewith by the springs i3, as well as wedging action :tor removing the broken pipe sections from the well.

lin the form of the invention sho in Figs. 4 and 5, the sections housing the arms lll@ l2 are formed separately from the grapple r casing l, the same being hinged at their upper ends at i6 to the grapple casin while the lower ends thereof are removab y bolted es at lrto the casing l, the grippin arms lll and springs 13 being carried by t e hinged lll@ V tioned as illustrated 1n Fig. 4.

openin 'While there are herein shown and de-.

scribed the preferred embodiment of the present invention, it is nevertheless to be understood that minor changes may be made therein without departing `from the spirit and scope thereof as claimed.

What is-claimed as new is In an oil well grapple, a tubular casing having an outwardly flaring lower end, suspending means for the casing, said casing having a series of circumferentially arran ed longitudinally extending equi-distany spaced lformed therein, a housin member pivota y secured to the outer wa of the said members each wenn casing in proximity to the upper end of each opening adapted .to cover the same,

aving a downwardly inclined lower end wall a gri ping arm pivfotally mounted in eac mem r adjacent its lower end ada ted to normally rest upon said lower inclined wall, a spring element enga 'ng each grip ing arm orcing downwar y thereon, an means for securing the lower ends of the housing members to the casing wall so that said gri ping arms will normally extend downward y into said casing through said openings .with their outer ends positloned in proximity to each other.

In testimony whereof I aix my signa- .x..JoHN mms. j 

